Chapter 2.3

Question 1

the unique role a species plays in its community, including how it gets its energy and nutrients, what habitat requirements it has, and with which other species and parts of the ecosystem it interacts is known as

Answer 1

Niche

Question 2

the study of all the populations of organisms interacting in an area

Answer 2

Community Ecology

Question 3

What type of ecologists investigate how various species contribute to ecosystem services such as pollination, water purification, and nutrient cycling.

Answer 3

Community Ecologist

Question 4

The physical environment in which individuals of a particular species can be found is known as

Answer 4

Habitat

Question 5

A species with very specific habitat or resource requirements that restrict where it can live

Answer 5

Niche Specialists

Question 6

A species who occupies a broad niche because it can utilize a wide variety of resources

Answer 6

Niche Generalists

Question 7

A simple, linear path starting with a plant that identifies what each organism in the path eats

Answer 7

Food Chain

Question 8

A linkage of all the food chains together that shows the many connections in the community is known as

Answer 8

Food Web

Question 9

An organism that converts solar energy to chemical energy via photosynthesis

Answer 9

Producers

Question 10

An organism that obtains energy and nutrients by feeding on another organism is known as

Answer 10

Consumers

Question 11

A species that is particularly vulnerable to ecosystem perturbations, and that, when we monitor it, can give us advance warning of a problem is known as

Answer 11

Indicator Species

Question 12

Feeding levels in a food chain are known as

Answer 12

Trophic Levels

Question 13

Consumers( including worms, insects, and crabs) that eat dead organic material is known as

Answer 13

Detritivores

Question 14

Organisms such as bacteria and fungi that break down organic matter all the way down to constituent atoms or molecules in a form that plants can take back up are known as

Answer 14

Decomposers

Question 15

The ability of an ecosystem to recover when it is damaged or perturbed is known as

Answer 15

Resilience

Question 16

The variety of species, including how many are present and their abundance relative to each other is known as

Answer 16

Species Diversity

Question 17

The total number of different species in a community is known as

Answer 17

Species Richness

Question 18

The relative abundance of each species in a community

Answer 18

Species Evenness

Answer 19

Edge Habitat

Answer 20

Core Regions

Question 21

A species that impacts its community more than its mere abundance would predict, often altering ecosystem structure is known as

Answer 21

Keystone Species

Question 22

Species interaction in which one individual feeds on another is known as

Answer 22

Predation

Question 23

Species interaction in which individuals are vying for limited resources are known as

Answer 23

Competition

Question 24

A close biological or ecological relationship between two species is known as

Answer 24

Symbiosis Interaction

Question 25

A symbiotic relationship between individuals of two species in which both parties benefit is known as a

Answer 25

Mutualism Interaction

Question 26

A symbiotic relationship b/w individuals of two species in which one benefits from the presence of the other but the other is unaffected this is known as

Answer 26

Commensalism Interaction

Question 27

A symbiotic relationship between individuals of two species in which one benefits and the other is negatively affected is known as

Answer 27

Parasitism

Question 28

The science that deals with the repair of damaged or distributed ecosystems are known as

Answer 28

Restoration Ecology

Question 29

How do predators/prey evade each other?

Answer 29

Hiding
Mimicry- deceptive colaration
Warning Coloration
Mechanical Defenses
Chemical Defenses

Question 30

Populations using the same limiting resource is known as

Answer 30

Competition

Question 31

T/F- Resource Partitioning can reduce competition

Answer 31

True

Question 32

What type of competition refers to the competition between different species for shared resources such as space, food and nesting sites during the breeding season and also for roosting sites during the non-breeding season

Answer 32

Interspecific

Question 33

What type of competition occurs between members of the same species. It also improves the species’ adaptations

Answer 33

Intraspecific

Question 34

What type of niche has 1 species that fulfills all its roles or uses all the resources it can is

Answer 34

Fundamental Niche

Question 35

What type of niche has a species that is limited in its roles or uses only a subset of resources is known as

Answer 35

Realized Niche

Question 36

T/F-Character Displacement is a result of competition

Answer 36

True

Question 37

***What is an example of character displacement

Answer 37

One birds species grows to be able to eat a new food source

Question 38

A measure of the number of species at each trophic level, the total number of trophic levels and available niches is known as

Answer 38

Ecological Diversity

Question 39

Regions of distinctly different physical areas that serve as boundaries between different communities is known as

Answer 39

Ecotones

Question 40

What is an example of a ecotone?

Answer 40

Edge between a forest and a field

Question 41

T/F- A community’s composition and diversity is heavily influenced by physical features such as temperature and moisture

Answer 41

True

Question 42

The difference physical makeup of an ecotone that creates different conditions that either attract or repel certain species that are known as

Answer 42

Edge Effect

Question 43

T/F- Loss of a keystone species creates a substantial ripple effect, disrupting interactions for many other species and, ultimately, altering food webs.

Answer 43

True

Question 44

Keystone species, such as alligators, whose actions alter the habitat in a way that benefits other species are also called

Answer 44

Ecosystem Engineers

Question 45

progressive replacement of plant and then animal species in a community over time due to the changing conditions that the plants themselves create is known as

Answer 45

Ecological Succession

Question 46

What are the two types of succession?

Answer 46

Primary
Secondary

Question 47

ecological succession that occurs in an area where no ecosystem existed before, such as on bare rock with no soil is known as

Answer 47

Primary Succession

Question 48

plant species that moves into an area during early stages of succession; these are often r-species is known as

Answer 48

pioneer species

Question 49

ecological succession that occurs in an ecosystem that has been disturbed; occurs more quickly than primary succession because soil is present is known as

Answer 49

Secondary Succession

Question 50

Species that thrive in edge habitats are known as

Answer 50

Edge species

Question 51

Species that can only be found deep within a given habitat is known as

Answer 51

Core species

Question 52

the division of resources to avoid interspecific competition for limited resources in an ecosystem is known as

Answer 52

Resource Partitioning

Question 53

What type of species interaction is portrayed in the picture of the elk and the spider.

Answer 53

Commensalism